ELEC1111 - Lab Work

ELEC1111

ELEC1111

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LAB WORK

CONTENTS Laboratory Expt – Expt – Intro ................................................................................................................................................................................. 2 Laboratory Expt – Expt – Circuit Construction .................................................................................................................................................. 2 Laboratory Expt – Expt – Voltage Sources and Node Equations ................................................................................................................ 3 Laboratory Expt – Expt – RC Transients ............................................................................................................................................................... 3 Laboratory Expt – Expt – Radio Controlled Car ................................................................................................................................................. 4 Laboratory Expt – Expt – Power and Energy ...................................................................................................................................................... 5 Laboratory Expt – Expt – Feedback Control ....................................................................................................................................................... 5 Laboratory Expt – Expt – AM radio reciever, Crystal Set ............................................................................................................................... 6 Laboratory Expt – Expt – A/D & D/A conversion ............................................................................................................................................. 6 Laboratory Expt – Expt – Introduction to Digital Logic.................................................................................................................................. 7

S1 - 2012

ELEC1111

LABORATORY EXPT – INTRO Things to know:      

Prototyping Board Reading Resistor color codes Digital Multimeter Power Supply Signal Generator The Oscilloscope

(Appendix 1) (Appendix 2) (Appendix 3) (Appendix 4) (Appendix 5) (Appendix 6)

Things to bring: 

Prototyping board

Notes: 1. When using the Precision Resistance Bridge: a. Make sure you’re measuring resistance not something else b. There is a button just under the two metal jaws. That button will open the metal jaws. Use it. Pre-Lab: Section A

- Theoretic equivalent resistance:   [()  ]   

LABORATORY EXPT – CIRCUIT CONSTRUCTION Things to know: 

Soldering

(Appendix 8)

Things to bring: 

Your entire Lab kit (PCB, Resistors, LED’s, etc.)

Notes: 1. You can build and test your LED circuit on your breadboard instead of soldering it all together 2. Make sure your LED’s are the correct way around Pre-Lab: Assemble the amplifier and tape down the components so they don’t fall out during transport. You can solder at  home if you have a soldering iron.

S1 - 2012

ELEC1111

LABORATORY EXPT – VOLTAGE SOURCES AND NODE EQUATIONS Things to know:   

V=IR Kirchhoff’s Laws Node voltage equations

Things to bring:  

Prototyping board 9V Battery

Notes: 1. Your battery will drop in voltage as it is used Pre-Lab: Section A

- i) Load current:  

 

  

Power dissipated:         Power delivered:       Power delivered equals power dissipated? Yes - ii) Terminal Voltage: 8.3 A Current flowing:  

 

  

Voltage drop:     1.2V Internal resistance:  

 

  

LABORATORY EXPT – RC TRANSIENTS Things to know: 

How a capacitor works

Things to bring:   

Breadboard LED set  Something that can count seconds

Notes: 1. The capacitor won’t be destroyed if it’s non-polarized. 2. You don’t have to do Part C if you don’t want to. However you can get bonus Lab marks which may help cover marks you lost in other labs Pre-Lab: None

S1 - 2012

ELEC1111

LABORATORY EXPT – RADIO CONTROLLED CAR Things to know: 

AM, FM, PWM and PPM signals

Things to bring: 

Yourself and the Lab book 

Notes: 1. The radio uses PPM except the oscilloscope will show them as voltage drops Pre-Lab:

You may want to exaggerate the amount of amplitude and frequency modulation. PWM

PPM

S1 - 2012

ELEC1111

LABORATORY EXPT – POWER AND ENERGY Things to know: 

P=IV

Things to bring: 

3 different colored pens

Notes: N/A Pre-Lab: Result h) Type

Power

Light Output 

Incandescent Compact Florescent Compact Florescent Quartz halogen LED

100 W 18 W 9W 50 W 5W

1500 Lumens 1400 Lumens 600 Lumens 600 Lumens 150 Lumens

Output/Watt  (performance) 15 L/W 78 L/W 67 L/W 12 L/W 30 L/W

LABORATORY EXPT – FEEDBACK CONTROL Things to know: 

Read the information given

Things to bring: 

Your best reaction skills and maybe something that you can use to count seconds

Notes: 1. You can hit pause to draw the graph 2. If you hit pause more than once in the application you may need to click run more than once Pre-Lab: None

S1 - 2012

ELEC1111

LABORATORY EXPT – AM RADIO RECIEVER, CRYSTAL SET Things to know: 

How a radio works

Things to bring: 

Headphones or the provided headphone in your lab kit 

Notes: 1. For the last question asking how many stations you can get you can just write 0 Pre-Lab:

AM – Amplitude modulation alters and encodes the signal in the varying amplitude of a frequency-constant wave FM – Frequency modulation alters and encodes the signal in the varying frequency of a amplitude-constant wave

LABORATORY EXPT – A/D & D/A CONVERSION Things to know: 

What sampling is w.r.t. A/D and D/A conversions

Things to bring: 

Headphones or the provided headphone in your lab kit 

Notes: 1. Do the Prelim reading before the lab, there’s a lot to read 2. Make sure the equipment is wired properly and the wires are as short as possible. Long wires will cause problems. Pre-Lab: None

S1 - 2012

ELEC1111

LABORATORY EXPT – INTRODUCTION TO DIGITAL LOGIC Things to know:  

Logic Gates NOT, AND, OR, NAND, NOR, XOR Truth tables

Things to bring: 

Yourself and the Lab book 

Notes: 1. Lab not usually done Pre-Lab: None

S1 - 2012